Hydrogenation catalyst for preparing dicyclopentadiene hydrogenated petroleum resin
A technology for hydrogenation of petroleum resin and dicyclopentadiene, which is applied in the field of hydrogenation catalysts and can solve problems such as the inability to obtain hue hydrogenation resins
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[0021] One, the preparation of catalyst:
[0022] Weigh a certain amount of PdCl 2 and H 2 PtC 16 , Dissolve it in 0.1N HCl, take the specific surface as 150-250m 2 / g, γ-Al with a pore volume of 0.5-0.9ml / g 2 o 3 as a carrier. the Al 2 o 3 Pour into the above solution and age for 2 hours. Dry it with an infrared lamp while stirring, then place the catalyst precursor in a box-type resistance furnace and roast at 300°C for 1 hour, and then roast at 500°C for 3 hours to obtain a finished catalyst for future use. Catalyst index and catalyst consumption of each embodiment are shown in Table 1.
[0023] 2. Catalyst evaluation:
[0024] Add 200ml of cyclohexane into a 2L stirred autoclave with a capacity, and then add 200g of crushed dicyclopentadiene petroleum resin raw material and a required amount of catalyst into the still. The air in the kettle is fully replaced with nitrogen and hydrogen in sequence, and then reacted for 2 to 6 hours at a temperature of 280-300° C....
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